Blimp: IME should submit form with text

blimp/common/proto/ime.proto

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Message definitions for text input messages.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
@@ skipping 30 matching lines @@
     HIDE_IME = 2;
 
     // Client => Server types.
     SET_TEXT = 3;
   }
 
   optional int32 render_widget_id = 1;
   optional Type type = 2 [default = UNKNOWN];
   optional InputType text_input_type = 3;
   optional string ime_text = 4;
+  optional bool auto_submit = 5;
 }